Lost plug-ins

Due to a glitch on my computer, I recently had to remove Sonar X3 and re-install it.
However upon re-installation I notice that I have lost a few plug-ins.
Is their a way to recoup these plug-ins?
They are still on the computer and I can use them as standalone but no longer within Sonar X3.
Any help would be greatly appreciated.
 
Thank you.
 
Gerry

The lost VST plug-ins were from Toontrack. EZdrummer 2 and EZkeys.

No the "vstplugins" folder has not been removed and as a matter of all the other plug-ins I had are still in it except for the Toontrack ones.

Thank's, but not being too savvy in this type of operation...how do I do this?

tried without any result.
What next?

The EZkeys.dii and EZdrummer.dll are in the following folder: program files---cakewalk---vstplugins---toontrack.
Also they are nowhere to be found in: program files(X86)---cakewalk---vst plugins.
All this problem is on my Dell computer. On this computer I have also had to remove and reinstall Sonar a couple of times in the last 8/9 months. I am starting to wonder if the Dell computer is not the issue.
I also have an HP laptop that I originally used for my music. Nothing of this sort has ever happened.   All the toontrack are in their proper files and work perfectly.
I am at a loss. I like the Dell because of the much bigger screen but if it going to keep acting up, I guess I will have to go back to the smaller screen laptop.
 Thanks.

I did a reinstall of EZdrummer only, but to no avail. Maybe if I do both EZdrummer and EZkeys that could solve the issue.
I will try tomorrow and see.
If I have a problem I will be back.....
 
Thanks again.

And you tried a rescan (rescan failed plug ins) ?

Also do you have another DAW, and does EZd and EZk work within it? If you don't you could download REAPER Demo, it's only around 11MB download and has a small footprint (also doesn't expire and is fully functional) you could install it and point it to your VST folder where you have EZd and EZk (Options - Preferences - VST and set the Path there), scan and see if they work from within REAPER, if they do then you could probably rule out problems with the plugs themselves. If you choose to test with REAPER, you can select the 'Portable install' option on installation and that keeps everything self contained in the one folder so everything is neat and tidy, and if you want to get rid of it after you have finished testing you just have the one folder to simply delete.